drm/i915: set w/a bit for snb pagefaults
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Wed, 11 Apr 2012 18:42:39 +0000 (20:42 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 17 Apr 2012 09:19:56 +0000 (11:19 +0200)
commitbe901a5a1bdb13c3390110d4b9780c03018d96a0
treee4824cc5d40abaa54a6d3944e7465e0cdfbc1293
parentde4a8bd16205283e9cb746e8fbfa7f9735c039b5
drm/i915: set w/a bit for snb pagefaults

Bspec says that we need to set this: vol1c.3 "Blitter Command
Streamer", Section 1.1.2.1 "GAB_CTL_REG - GAB Unit Control Register".

We don't really rely on pagefaults, but who knows what this all
affects.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_gem.c
drivers/gpu/drm/i915/i915_reg.h